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Computer Audio Asylum Music servers and other computer based digital audio technologies. |
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Computer Audio Asylum Music servers and other computer based digital audio technologies. |
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In Reply to: RE: just so you know posted by greg7 on September 4, 2011 at 15:53:15:
Gang,Look... I am not saying this is the only way to do this. But several new Async companies are not lets say optimizing the benefit of why to use Async protocol.
The best way to get the most out of a dac chip is to put 2 audio oscillators right next to the dac chip. Buffer the oscillators and send them back to the USB controller to use to create the I2S (or other audio data stream L/R justified, DSP whatever) and this will give you the best response and the lowest jitter.
What many companies are doing is using the Frequency Synthesizer to create the audio oscillators. Basically these are frequency multipliers that can create any frequency and in the case of the TAS1020 down to 4Hz resolution. The problem with a Frequency Synthesizer is that the jitter can be as much as 100x that of a fixed oscillator. When enabling the oscillator in the TAS1020 also adds noise to the audio data stream because of the noise it fixes to the power supplies.
This is what Chris was point out in the CA article.
So choose wisely what you buy and ask the correct questions.
It's not about the code... though all of ours is different, it may have an effect on the sound. But more so it has to do with the hardware and how that functions.
Thanks
Gordon
J. Gordon Rankin
Edits: 09/06/11 09/06/11
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- Missing the point! - Gordon Rankin 07:22:29 09/06/11 (0)
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